Even after a hard week on the road, this tee keeps you feeling cool, odor-free and ready for more. The lightest of our merino baselayer fabrics, Merino 1 Silkweight is made to keep you dry and comfortable in warm-to-hot conditions. Merino wool is naturally breathable, regulates body temperature and stretches. It's also wonderfully soft and naturally resists odor. Ours is responsibly sourced from the grasslands of Patagonia. We slow wash it for softness and shrink resistance, without the use of chlorine, then blend it with 35% Capilene® polyester (100% recycled) for durability and for dry times and moisture transfer superior to that of 100% merino. Set-in sleeves and offset shoulder and side seams lie smoothly beneath pack straps. Machine wash cold; machine dry at low temperatures. Fabric is bluesign® approved.

Fine merino wool responsibly sourced from the grasslands of Patagonia and blended with Capilene® all-recycled polyester for improved wicking, durability and dry time

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Merino Wool Blend

Exceptionally soft, naturally breathable and warm even when wet, merino wool regulates your body temperature, has a great warmth-to-weight ratio, naturally controls odor and stretches as you move.

Our merino wool is sustainably sourced from the grasslands of Patagonia. We slow wash it for softness and shrink-resistance without the use of chlorine.

For our Merino Wool Baselayers we blend merino wool with all-recycled polyester for increased durability, improved wicking and faster dry times. The resulting garment provides higher performance in the field, is less fussy to care for and remains exceptionally soft against the skin, naturally odor resistant and machine washable. Our merino baselayer fabrics are bluesign® approved.

Environmentally Friendly

Patagonia has worked with bluesign technologies since 2000 to evaluate and reduce resource consumption in our materials supply chain, and to assist us with managing the chemicals, dyes and finishes used in the process. bluesign technologies, based in Switzerland, works at each step in the textile supply chain to approve chemicals, processes, materials, and products that are safe for the environment, safe for workers, and safe for end customers.

In 2007, Patagonia became the first brand to officially join the network of bluesign® system partners.

Any fabric you see that’s bluesign® approved offers the highest level of consumer safety by employing methods and materials in their manufacture that conserve resources and minimize impacts on people and the environment.

The Footprint Chronicles®

We promote fair labor practices, safe working conditions and environmental responsibility throughout the Patagonia supply chain.Below are the suppliers that impact the Patagonia Men's Merino 1 Silkweight T-ShirtRead more